Downgrade iOS 10.3.3 to 8.4.1 Untethered no SHSH (Cellular working). This is a working solution to downgrade any 32bits jailbroken devices. Your iphone needs to be jailbroken with the latest ios10.3.3 jailbreak you can download from here:
You will need to restore all so its better first make a complete backup of your iphone to restore backup if you want put your data back.
This downgrade method works for all ios10.x version so lets start.
First, you need to jailbreak with H3lix and run cydia app . Here on cydia you will need to add a new repo to cydia (repo.ftios.vn) like in the video tutorial. From this repo you need to install the downgrade package.
Your device will reboot after that don’t do anything, just go to settings and update your device. You will see on update selection a version 8.4.1. click to update and wait for the download and run the install.
Downgrade iOS 10.3.3 to 8.4.1 Untethered no SHSH (Cellular working)
When your iPhone boots up it will boot on 8.4.1 after the update. An important tip is go to settings and select reset all setting and erase content. This step is important to activate the device.
Downgrade tutorial ios 10.x to ios 8.4.1 – all 32bits devices
that’s all the steps you need to do to downgrade iOS 10.3.3 to 8.4.1 Untethered no SHSH (Cellular working)